maamss0041 Tyco Electronics, maamss0041 Datasheet - Page 4

• Manufacturer Part Number: maamss0041
• Description: Broadband Catv Amplifier 50 - 1000 Mhz
• Manufacturer: Tyco Electronics

4
Enhanced Input Return Loss (IRL) and Gain Flatness
An enhanced input return loss and improved gain flatness circuit has been developed for applications where those
parameters are key to system performance. Adding a series inductor, L3, to the input, a shunt capacitor, C5, to the output,
and changing the bias inductor, L1, value will improve the input return loss to 25 dB typical from 50 to 1000 MHz. The gain
flatness will also improve to less than 0.3 dB from 50 to 1000 MHz.
Schematic Including Off-Chip
Components
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
Off-Chip Component Values
Broadband CATV Amplifier
50 - 1000 MHz
* L1 supplied from EPCOS, part number B82422A1102K100.
RF
Component
IN
L1 *
C1
C2
C3
C4
C5
R1
L2
L3
L3
C1
Pin 1
C4
1000 nH
0.01 µF
0.01 µF
0.01 µF
0.01 µF
Value
8.2 nH
5.6 nH
0.5 pF
523 Ω
R1
C5
L1
C3
C2
VDD
Package
0402
0402
0402
0402
0402
1210
0402
0402
0402
L2
RF
OUT
Recommended Board Layout
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MAAMSS0041
V1